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嗨，我想在我的树莓派上使用 nginx 作为 doh 和点服务器。我可以完美地运行 dot，但是当我尝试通过 DNS Over HTTPS 发送请求时，它会出现错误。我尝试了很多东西，但我不知道这里有什么问题？这是我发送的查询请求：

curl --http2 -H 'accept: application/dns-json' https://my.dnsserver.com/dns-query?name=cloudflare.com

这是来自 doh 端点的响应

    <html>
<head><title>502 Bad Gateway</title></head>
<body>
<center><h1>502 Bad Gateway</h1></center>
<hr><center>nginx/1.18.0</center>
</body>
</html>

我的 nginx.conf 是这样的：

user www-data;
worker_processes auto;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;
load_module /etc/nginx/modules/ngx_stream_js_module.so;

events {
    worker_connections 768;
    # multi_accept on;
}

http {

    ##
    # Basic Settings
    ##

    sendfile on;
    tcp_nopush on;
    types_hash_max_size 2048;
    # server_tokens off;

    # server_names_hash_bucket_size 64;
    # server_name_in_redirect off;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    ##
    # SSL Settings
    ##

    ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3; # Dropping SSLv3, ref: POODLE
    ssl_prefer_server_ciphers on;

    ##
    # Logging Settings
    ##

    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    ##
    # Gzip Settings
    ##

    gzip on;

    # gzip_vary on;
    # gzip_proxied any;
    # gzip_comp_level 6;
    # gzip_buffers 16 8k;
    # gzip_http_version 1.1;
    # gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;


    upstream dohloop {
          zone dohloop 64k;
          server 127.0.0.1:8053;
                
    }
    ##
    # Virtual Host Configs
    ##
    
    server {
          listen *:443 ssl http2;
          #root /var/www/nginx;
          server_name my.dnsserver.com;


          ssl_certificate /etc/nginx/ssl/cert.pem;
          ssl_certificate_key /etc/nginx/ssl/key.pem;
          #ssl_protocols TLSv1.2 TLSv1.3;
          #ssl_ciphers "ECDHE-ECDSA-AES256-GCM-SHA384";
          #ssl_prefer_server_ciphers on;
          #ssl_session_cache shared:ssl_cache:10m;
          #ssl_session_timeout 10m;

          #gzip on;
          #gzip_disable "msie6";
          #gzip_proxied any;
          #gzip_vary on;
          #gzip_types text/plain text/css application/x-javascript text/xml application/xml application/xml+rss text/javascript text/js application/javascript;
          #gzip_static on;

          location / {
                return 404 "Hello this is navid RJ\n";
          }

          location /dns-query {
                # Proxy HTTP/1.1, clear the connection header to enable Keep-Alive
                proxy_http_version 1.1;
                proxy_set_header Connection "";

                # Enable Cache, and set the cache_key to include the request_body
                #proxy_cache doh_cache;
                #proxy_cache_key $scheme$proxy_host$uri$is_args$args$request_body;

                # proxy pass to the dohloop upstream
                proxy_pass http://dohloop;
          }
       }
    
    #include /etc/nginx/conf.d/*.conf;
    #include /etc/nginx/sites-enabled/*;
}

stream {
  # DNS logging
  #log_format  dns  '$remote_addr [$time_local] $protocol "$dns_qname"';
  #access_log /var/log/nginx/dns-access.log dns;

  # Include the NJS module
  js_include /etc/nginx/njs.d/nginx_stream.js;

  # The $dns_qname variable can be populated by preread calls, and can be used for DNS routing
  #js_set $dns_qname dns_get_qname;
    # DNS upstream pool
    #upstream dns {
    #    zone dns 64k;
    #    server 127.0.0.1:53; #My Pi Hole
    #}
    upstream dns {
        zone dns 64k;
        server 8.8.8.8:53;
    }
    upstream dot {
        zone dot 64k;
        server 127.0.0.1:853;
    }

    # DoT server for decryption
    server {
        listen 127.0.0.1:8053;
        js_filter doh_filter_request;
        #js_preread dns_preread_doh_request;
        #return 200;
        proxy_ssl on;
        proxy_pass dot;
    }
    # DNS(TCP) and DNS over TLS (DoT) Server
    # Terminates DNS and DoT, then proxies on to standard DNS.
    server {
       listen 853 ssl;
       ssl_certificate /etc/nginx/ssl/cert.pem;
       ssl_certificate_key /etc/nginx/ssl/key.pem;
       js_preread dns_preread_dns_request;
       proxy_pass dns;
    }
}

所以我在这里想念什么？我知道上游工作导致它通过点请求

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